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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview
* 'media-picker' handles showing the dropdown allowing users to select the
* default camera/microphone.
*/
Polymer({
is: 'media-picker',
behaviors: [SiteSettingsBehavior, WebUIListenerBehavior],
properties: {
/**
* The type of media picker, either 'camera' or 'mic'.
*/
type: String,
/** Label for a11y purposes. */
label: String,
/**
* The devices available to pick from.
* @type {Array<MediaPickerEntry>}
*/
devices: Array,
},
/** @override */
ready: function() {
this.addWebUIListener(
'updateDevicesMenu', this.updateDevicesMenu_.bind(this));
this.browserProxy.getDefaultCaptureDevices(this.type);
},
/**
* Updates the microphone/camera devices menu with the given entries.
* @param {string} type The device type.
* @param {!Array<MediaPickerEntry>} devices List of available devices.
* @param {string} defaultDevice The unique id of the current default device.
*/
updateDevicesMenu_: function(type, devices, defaultDevice) {
if (type != this.type) {
return;
}
this.$.picker.hidden = devices.length == 0;
if (devices.length > 0) {
this.devices = devices;
// Wait for <select> to be populated.
this.async(() => {
this.$.mediaPicker.value = defaultDevice;
});
}
},
/**
* A handler for when an item is selected in the media picker.
* @private
*/
onChange_: function() {
this.browserProxy.setDefaultCaptureDevice(
this.type, this.$.mediaPicker.value);
},
});
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